3L bag-in-box imhando yekurongedza inoshandiswa kune zvinwiwa zvakaita sewaini, mvura kana zvimwe zvinwiwa. Kazhinji ine bhegi repurasitiki rakazadzwa nemvura uye rinoiswa mukati mekadhibhodhi bhokisi. Iyo bhegi-mu-bhokisi dhizaini inofambisa kuchengetedza uye kugovera sezvo ichichengetedza chigadzirwa uye kazhinji iri nyore kubata. Rudzi urwu rwekurongedza runowanzo shandiswa kune akakura huwandu hwemvura uye inozivikanwa muindasitiri yewaini nekugona kwayo kuwedzera hupenyu hwesherufu yechigadzirwa kana chavhurwa.